Sony DPP-MS300E Service Manual ▷ View online
4-6
[HUE Level Adjustment] (VI-40 board)
Adjustment Procedure:
(1)
(1)
Connect on vector scope to the J1802.
(2)
Press the S1707 (CAPTURE).
(3)
Check yellow phase satisfies the specification value.
(4)
If NG, press the S1708 (PICTURE) and lights on the D1733
(INPUT)
(INPUT)
(5)
A little adjust the RV105 and press the S1707.
(6)
Repeat steps (2) to (5) until yellow phase satisfies the speci-
fication value.
fication value.
Fig. 4-12
Fig. 4-13
Mode
VIDEO Input
Signal
Color bar (S-VIDEO IN)
Measuring point
J1802 (OUTPUT)
Measuring equipment
Vector scope
Adjustment part
RV105
Specification value
Yellow phase 167 ± 4 deg
167
±
4
°
180
°
90
°
0
°
Yellow
Reference : B-Y Waveform (CL408)
A
•
If yellow phase is under 163
°
,
extend the
A
level.
•
If yellow phase is over 171
°
,
shorten the
A
level.
4-7
Adjustment Parts and Measuring Points:
– DK-40 BOARD (Side A) –
RV404
A/D Input Y Level
Adjustment
A/D Input Y Level
Adjustment
CT401
910fh Adjustment
910fh Adjustment
RV405
A/D Input R/Y Level
Adjustment
A/D Input R/Y Level
Adjustment
RV401
D/A Output Y Level
Adjustment
D/A Output Y Level
Adjustment
RV402
D/A Output Chroma Level
Adjustment
D/A Output Chroma Level
Adjustment
1
132
89
IC407
CT500
Free-run Frequency (2)
Adjustment
Free-run Frequency (2)
Adjustment
– DK-40 BOARD (Side B) –
CL408
CL407
CL409
1
12
CL427
IC401
4-8 E
– VI-40 BOARD (Side A) –
1H Delay Adjustment
RV250
CT250
RV103 Y/C Separation Y
Level Adjustment
Level Adjustment
RV102 Y/C Separation Chroma
Level Adjustment
Level Adjustment
CT102
Free-run Frequency (1)
Adjustment
Free-run Frequency (1)
Adjustment
RV105
HUE Level
Adjustment
HUE Level
Adjustment
1
28
15
RV106
A/D Input B/Y
Level Adjustment
A/D Input B/Y
Level Adjustment
FL106
1
3
– VI-40 BOARD (Side B) –
CL138
CL129
CN1943
4
1
1
– MD-40 BOARD (Side A) –
J1802
OUTPUT
– VS-40 BOARD (Side A) –
DPP-MS300E
5-1
5-2
5-1.
BLOCK DIAGRAM – VIDEO Section –
SECTION 5
DIAGRAMS
2
1
3
4
(ON: PLUG IN)
CJ1801
S VIDEO INPUT
J1801
VIDEO
INPUT
INPUT
J1802
OUTPUT
05
AD IN
CVRF
YVRF
INSL
25
AYO 31
ACO 39
41
33
10
50
20
OCLK
11
Y SIGNAL
SELECT SWITCH & VIDEO AMP
IC102
Y/C SEPARATOR
IC105
Y/C MIX
IC103 (1/2)
VIDEO ENCODER
IC103 (2/2)
AFC
IC401
A/D, D/A CONVERTER,
MEMORY BUS CONTROL
IC407 (1/2)
Y IN
C IN
Y OUT
Y IN
R-Y IN
B-Y IN
C SYNC IN
XO IN
C OUT
C VIDEO
OUT
1
3
2
5
4
7
16
15
18
17
20
5
15
9
16
VSIN
VCIN
MCKI
YO
1
3
2
5
4
7
CHROMA SIGNAL
SELECT SWITCH & VIDEO AMP
IC101
6
10
3
2
4
VIDEO AMP
Q104, 123
BFP
23
WEVN 32
AFH 27
VD 26
MCKO 17
YMCK 37
LOW-PASS
FILTER
FL102
Y AMP
Q107
Y/C
MIX
CLAMP
CLAMP
R-Y
MODULATOR
PULSE
GENERATOR
PHASE
SHIFTER
OSC
B-Y
MODULATOR
CLAMP
VIDEO
AMP
BAND-PASS
FILTER
FL101
Y BUFFER
Q101
R-Y BUFFER
Q102 (1/2)
B-Y BUFFER
Q102 (2/2)
R-Y AMP
Q404
B-Y AMP
Q402
R-Y BUFFER
Q406
B-Y BUFFER
Q405
CLAMP
Q408
CLAMP
Q409
R-Y BUFFER
Q411
B-Y BUFFER
Q413
LOW-PASS
FILTER
FL106
LOW-PASS
FILTER
FL107
CHROMA
AMP
Q109
CLAMP
Q124
RV102
Y/C SEPARATION
CHROMA LEVEL
RV103
Y/C SEPARATION
Y LEVEL
CT410
910fh
RV404
A/D IN
Y LEVEL
RV405
A/D IN
R-Y LEVEL
RV401
D/A OUT
Y LEVEL
Y LEVEL
RV402
D/A OUT
CHROMA LEVEL
+
SYCX
29 Y OUT
43
V OUT
36
U OUT
CGEEX
82 V IN
Y AMP
Q403
Y BUFFER
Q407
CLAMP
Q410
Y BUFFER
Q412
LOW-PASS
FILTER
FL105
LOW-PASS
FILTER
Q401, 416
64
Y IN
90 ECK
88
EVD
89
EHD
91 EEVN
73
U IN
26 VREF1
33 VREF2
40 VREF3
• SIGNAL PATH
: COMPOSITE VIDEO
: Y SIGNAL
: CHROMA SIGNAL
: R-Y SIGNAL
: B-Y SIGNAL
Y
C
1H DELAY
IC250
VIDEO
C IN
C OUT
25
5
3
OUT 3
R-Y OUT
HD
20
24
B-Y OUT
X101
17.73MHz
19
B-Y IN
14
1 IN
CLK IN
R-Y IN
16
C CNT
4
AMP
Q251
LOW-PASS
FILTER
FL250
BUFFER
Q252
DEMODULATOR
FL251
AMP
Q250
CLOCK BUFFER
Q113
RV105
HUE LEVEL
T IN
11
VCXI
12
VCXO
10
RV106
A/D IN
B-Y LEVEL
RV250
1H DELAY
CT250
1H DELAY
CT102
FREE-RUN
FREQUENCY (1)
5
R-Y/B-Y DECODER
IC108
X102
4.43MHz
XO OUT
5
CT103
ENCODER
4.43MHz
2
4
IC402
R-Y
B-Y
R-Y
B-Y
R-Y
B-Y
R-Y
B-Y
R-Y
B-Y
R-Y
B-Y
R-Y
B-Y
R-Y
B-Y
B-Y
R-Y
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